The material expelled by the star glows with different colors depending on its composition, its density and how close it is to the hot central star. Blue samples helium; blue-green oxygen ...
Look to the east and west after dark this week, and you’ll quickly see two very bright “stars” in the evening ... brighter planet around that keeps a different schedule.
What is that bright white star in the sky? Whether you’re an early riser or you’ve been driving after dark in recent weeks, there have been two very bright “stars” shining in the east.
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